Shifting the probe closer to the fornix during a longitudinal scan will affect the sound beam how?

When the probe is shifted closer to the fornix during a longitudinal scan, the sound beam is directed more laterally. This position adjustment allows the sound wave to cover a wider area of the ocular structures, which promotes an extension of the view to include more peripheral structures. Thus, the imaging will include a broader view of the peripheral fundus, which can reveal significant pathology that may not be visible when focusing on the central or more anterior aspects of the eye.

This approach improves the ability to visualize detailed aspects of the peripheral retina or any pathologies located in that region, which is crucial for comprehensive ocular assessments. Understanding the dynamics of probe positioning and how it affects the echographic image is vital for a sonographer in optimizing the ultrasound examination and ensuring thorough diagnostics.